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#### Performing an Automatic Calibration

In addition to the usual multiple arm calibration, you can perform an automatic calibration of the arms. PC-DMIS provides a command that automatically calibrates the current probe during measurement routine execution. PC-DMIS begins the calibration routine once it executes the command. To insert this command, select the Insert | Calibrate | AutoCalibrate Multiple Arm menu option.

The following command block is inserted into the Edit window:

AUTOCALIBRATE/MULTIPLEARM, ARM_THAT_MEASURES=BOTH, MEASURE_MODE=DCC , OPERATION TYPE=ORIGIN, QUALTOOL_ID=SPHERE3, MEASURE_AT_CENTER 1=<0,0,0>
ARM 1=CMM1, ARM 2=CMM2

A description of the items in this command block is given here:

ARM_THAT_MEASURES=
Indicates which arm performs the measurement (not which arm holds the tool). Choices are BOTH, ARM2 or ARM1.

MEASURE_MODE=
Indicates whether the calibration is in MANUAL or DCC mode.

OPERATION_TYPE=
Indicates if calibration is for ORIENTATION AND ORIGIN or ORIGIN only.

QUALTOOL_ID=
Specifies the name of the qualification tool used.

MEASURE_AT_CENTER 1=
The X, Y, Z location to be used for measurement when using CALIBRATION_MODE=DCC. This is not present if the command is using CALIBRATION_MODE=MANUAL.

Press F9 to open the AutoCalibrate Multiple Arms dialog box.

AutoCalibrate Multiple Arms dialog box

Most of the items in this dialog box are the same as those used in the Multiple Arm Calibration dialog box (Operation | Calibrate/Edit | Multiple Arm Mode). The differences are listed below:

You cannot specify the probe and tip for Arm1 or Arm2. They are shown in the lists on this dialog box for information purposes only. The AUTOCALIBRATE/MULTIPLEARM command gets them from the content of the measurement routine in which the command is used.

First Arm Probe
For display only. This is determined by the LOADPROBE command for Arm1 that precedes the AUTOCALIBRATE/MULTIPLEARM command

First Arm Tip
For display only. This is determined by the TIP command for Arm1 that precedes the AUTOCALIBRATE/MULTIPLEARM command

Second Arm Probe
For display only. This is determined by the LOADPROBE command for Arm2 that precedes the AUTOCALIBRATE/MULTIPLEARM command

Second Arm Tip
For display only. This is determined by the TIP command for Arm2 that precedes the AUTOCALIBRATE/MULTIPLEARM command